[单选题]

透镜+5.00DS,联合透镜-3.00DC×90°的结果为()。

A.+8.00DS/+3.00DCX180°

B.+2.00DS/+3.00DCX180°

C.+2.00DS/-3.00DCX90°

D.+3.00DS/-2.00DCX90°

参考答案与解析: